50mmx0.75mm female thread, board mountable
                
                    This is a mounting flange with a 50mm x 0.75mm female thread, used to mount a lens to the flange. The flange also has holes bored through it, which are used to attach the flange to a lens board, using screws.Threading: 50mm x 0.75mm (female)  Lens board mountable: yes
                
                
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